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An efficient method for estimating the collapse risk of structures in seismic regions
Earthquake engineering & structural dynamics, 2013-01, Vol.42 (1), p.25-41
Eads, Laura
Miranda, Eduardo
Krawinkler, Helmut
Lignos, Dimitrios G.
2013
Details
Autor(en) / Beteiligte
Eads, Laura
Miranda, Eduardo
Krawinkler, Helmut
Lignos, Dimitrios G.
Titel
An efficient method for estimating the collapse risk of structures in seismic regions
Ist Teil von
Earthquake engineering & structural dynamics, 2013-01, Vol.42 (1), p.25-41
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2013
Link zum Volltext
Quelle
Wiley-Blackwell Journals
Beschreibungen/Notizen
SUMMARY Assessing the probability of collapse is a computationally demanding component of performance‐based earthquake engineering. This paper examines various aspects involved in the computation of the mean annual frequency of collapse (λc) and proposes an efficient method for estimating the sidesway collapse risk of structures in seismic regions. By deaggregating the mean annual frequency of collapse, it is shown that the mean annual frequency of collapse is typically dominated by earthquake ground motion intensities corresponding to the lower half of the collapse fragility curve. Uncertainty in the collapse fragility curve and mean annual frequency of collapse as a function of the number of ground motions used in calculations is also quantified, and it is shown that using a small number of ground motions can lead to unreliable estimates of a structure's collapse risk. The proposed method is shown to significantly reduce the computational effort and uncertainty in the estimate. Copyright © 2012 John Wiley & Sons, Ltd.
Sprache
Englisch
Identifikatoren
ISSN: 0098-8847
eISSN: 1096-9845
DOI: 10.1002/eqe.2191
Titel-ID: cdi_proquest_miscellaneous_1730086900
Format
–
Schlagworte
Collapse
,
Computation
,
deaggregation
,
Earth sciences
,
Earth, ocean, space
,
Earthquake engineering
,
Earthquakes
,
Earthquakes, seismology
,
Engineering and environment geology. Geothermics
,
Engineering geology
,
Exact sciences and technology
,
Fragility
,
Ground motion
,
incremental dynamic analysis
,
Internal geophysics
,
Mathematical analysis
,
mean annual frequency
,
performance-based earthquake engineering
,
probabilistic risk assessment
,
Risk
,
Seismic engineering
,
Seismic phenomena
,
Studies
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